package com.dss.auto_deploy.util;

import org.apache.commons.lang3.time.DateFormatUtils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.temporal.ChronoUnit;
import java.util.Calendar;
import java.util.Date;

/**
 * 时间工具类
 *
 * @author lenovo
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";
    public static String YYYYMMDD = "yyyyMMdd";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String getTime(Date date) {
        return parseDateToStr(YYYY_MM_DD_HH_MM_SS, date);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }
    /**
     * 计算日期的天数差异（忽略时分秒）(排除周末)
     * remove
     * @param startDate 开始时间
     * @param endDate 结束时间
     * @return int
     */
    public static int differentDaysByDaysRemoveWeekDays(Date startDate, Date endDate) {
        LocalDate localDate1 = startDate.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
        LocalDate localDate2 = endDate.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
        // 计算日期的天数差异（忽略时分秒）
        Long daysDiff = ChronoUnit.DAYS.between(localDate1, localDate2);
        int days = Math.abs(Integer.parseInt(daysDiff.toString()));
        int weekdays = 0;
        LocalDate date = localDate1;
        while (date.isBefore(localDate2) || date.isEqual(localDate2)) {
            if (DayOfWeek.SATURDAY.equals(date.getDayOfWeek()) || DayOfWeek.SUNDAY.equals(date.getDayOfWeek())) {
                weekdays++;
            }
            date = date.plusDays(1);
        }
        // 排除周末后的天数差
        int weekdaysDifference = days - weekdays;
        return weekdaysDifference;
    }

    public static void main(String[] args) {
        Date startDate = dateTime(YYYY_MM_DD_HH_MM_SS,"2023-05-01 11:11:11");
        Date endDate = new Date();
        int days = differentDaysByDaysRemoveWeekDays(startDate, endDate);
        System.out.println(days);
    }
    /**
     * 计算相差秒数
     */
    public static int differentSecondsByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        long sec = diff % nd % nh % nm / ns;
        StringBuilder sb = new StringBuilder();
        if (day > 0) {
            sb.append(day + "天");
        }
        if (hour > 0) {
            sb.append(hour + "小时");
        }
        if (min > 0) {
            sb.append(min + "分钟");
        }
        if (sec > 0) {
            sb.append(sec + "秒");
        }
        return sb.toString();
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 在日期date上增加amount天 。
     *
     * @param date   处理的日期，非null
     * @param amount 要加的天数(正数)/要减去的天数(负数)
     */
    public static String dealDays(Date date, int amount) {
        Calendar now = Calendar.getInstance();
        now.setTime(date);
        now.set(Calendar.DATE, now.get(Calendar.DATE) + amount);
        Date time = now.getTime();
        String str = parseDateToStr(YYYY_MM_DD_HH_MM_SS, time);
        return str;
    }

    /**
     * 从时间戳中获取小时数
     *
     * @param time
     * @return
     */
    public static long getHours(long time) {
        return time / (1000 * 60 * 60);
    }

    /**
     * 从时间戳中获取分钟数
     *
     * @param time
     * @return
     */
    public static long getMins(long time) {
        return time / (1000 * 60);
    }
}
